Chisel



FIG. 1 is a perspective view of a chisel showing my new design;

FIG. 2 is a left side elevational view showing the design for the chisel of FIG. 1;

FIG. 3 is a right side elevational view showing the design for the chisel of FIG. 1;

FIG. 4 is a front elevational view showing the design for the chisel of FIG. 1;

FIG. 5 is a rear elevational view showing the design for the chisel of FIG. 1;

FIG. 6 is a top elevational view showing the design for the chisel of FIG. 1; and,

FIG. 7 is a bottom elevational view showing the design for the chisel of FIG. 1.

The broken line showing of portions of the chisel forms no part of the claimed design. 

CLAIM The ornamental design for a chisel, as shown and described. 